1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/run-pass/issues/issue-6117.rs b/src/test/ui/run-pass/issues/issue-6117.rs
new file mode 100644
index 00000000000..55527297402
--- /dev/null
+++ b/src/test/ui/run-pass/issues/issue-6117.rs
@@ -0,0 +1,20 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// pretty-expanded FIXME #23616
+
+enum Either<T, U> { Left(T), Right(U) }
+
+pub fn main() {
+    match Either::Left(Box::new(17)) {
+        Either::Right(()) => {}
+        _ => {}
+    }
+}